gcc/libgo/runtime/go-string-to-byte-array.c
Ian Lance Taylor 6736ef96ea libgo: Merge to master revision 19184.
The next revision, 19185, renames several runtime files, and
will be handled in a separate change.

From-SVN: r211328
2014-06-06 22:37:27 +00:00

29 lines
821 B
C

/* go-string-to-byte-array.c -- convert a string to an array of bytes in Go.
Copyright 2010 The Go Authors. All rights reserved.
Use of this source code is governed by a BSD-style
license that can be found in the LICENSE file. */
#include "runtime.h"
#include "array.h"
#include "arch.h"
#include "malloc.h"
struct __go_open_array
__go_string_to_byte_array (String str)
{
uintptr cap;
unsigned char *data;
struct __go_open_array ret;
cap = runtime_roundupsize (str.len);
data = (unsigned char *) runtime_mallocgc (cap, 0, FlagNoScan | FlagNoZero);
__builtin_memcpy (data, str.str, str.len);
if (cap != (uintptr) str.len)
__builtin_memset (data + str.len, 0, cap - (uintptr) str.len);
ret.__values = (void *) data;
ret.__count = str.len;
ret.__capacity = (intgo) cap;
return ret;
}